The U.S. Food and Drug Administration is reviewing applications from medical device makers more quickly in recent years, according to an agency report released on Monday. The FDA said it took the agency an average of 335 days to approve devices in fiscal 2006, compared with 438 days in 2005. The fiscal year ends on September 30.

Young adults who abuse amphetamines may be raising their risk of suffering a heart attack, a new study shows. Texas researchers found that among more than 3 million 18- to 44-year- olds hospitalized in their state between 2000 and 2003, those who were abusing amphetamines were 61 percent more likely than non-users to be treated for a heart attack.